I was testing how well C2C runs on a brand-new high-end laptop, and in the process found something unnerving. The turn times on a very advanced save were decent (2.5 mins), but the modifier recalc took at least five minutes at the start of the game. I was wondering if there is any optimization that could take place there, as it seems quite a large time is taken for the recalc compared to an end-turn.